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Most of the current methods are devoted either to discovering static latent topics and users\u2019 interests or to analyzing topic evolution only from intrafeatures of documents, namely, text content, without considering directly extrafeatures of documents such as authors. Moreover, they are applicable only to the case of single processor. To resolve these problems, we propose a dynamic users\u2019 interest discovery model with distributed inference algorithm, named as Distributed Author-Topic over Time (D-AToT) model. The collapsed Gibbs sampling method following the main idea of MapReduce is also utilized for inferring model parameters. The proposed model can discover latent topics and users\u2019 interests, and mine their changing patterns over time. Extensive experimental results on NIPS (Neural Information Processing Systems) dataset show that our D-AToT model is feasible and efficient. <\/jats:p>","DOI":"10.1155\/2014\/280892","type":"journal-article","created":{"date-parts":[[2014,4,22]],"date-time":"2014-04-22T21:06:08Z","timestamp":1398200768000},"page":"280892","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":10,"title":["A Dynamic Users\u2019 Interest Discovery Model with Distributed Inference Algorithm"],"prefix":"10.1177","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8602-1819","authenticated-orcid":false,"given":"Shuo","family":"Xu","sequence":"first","affiliation":[{"name":"Information Technology Support Center, Institute of Scientific and Technical Information of China, No. 15 Fuxing Road, Haidian District, Beijing 100038, China"}]},{"given":"Qingwei","family":"Shi","sequence":"additional","affiliation":[{"name":"Information Technology Support Center, Institute of Scientific and Technical Information of China, No. 15 Fuxing Road, Haidian District, Beijing 100038, China"},{"name":"School of Software, Liaoning Technical University, No. 188 Longwan Street South, Huludao, Liaoning 125105, China"}]},{"given":"Xiaodong","family":"Qiao","sequence":"additional","affiliation":[{"name":"College of Software, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, China"}]},{"given":"Lijun","family":"Zhu","sequence":"additional","affiliation":[{"name":"Information Technology Support Center, Institute of Scientific and Technical Information of China, No. 15 Fuxing Road, Haidian District, Beijing 100038, China"}]},{"given":"Han","family":"Zhang","sequence":"additional","affiliation":[{"name":"Information Technology Support Center, Institute of Scientific and Technical Information of China, No. 15 Fuxing Road, Haidian District, Beijing 100038, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8690-0664","authenticated-orcid":false,"given":"Hanmin","family":"Jung","sequence":"additional","affiliation":[{"name":"Department of Computer Intelligence Research, Korea Institute of Science and Technology Information, 245 Daehak-ro, Yuseong-gu, Daejeon 305-806, Republic of Korea"}]},{"given":"Seungwoo","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Computer Intelligence Research, Korea Institute of Science and Technology Information, 245 Daehak-ro, Yuseong-gu, Daejeon 305-806, Republic of Korea"}]},{"given":"Sung-Pil","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Computer Intelligence Research, Korea Institute of Science and Technology Information, 245 Daehak-ro, Yuseong-gu, Daejeon 305-806, Republic of Korea"}]}],"member":"179","published-online":{"date-parts":[[2014,4,22]]},"reference":[{"doi-asserted-by":"publisher","key":"B1-2014-280892","DOI":"10.1145\/1135777.1135883"},{"doi-asserted-by":"publisher","key":"B2-2014-280892","DOI":"10.1007\/s11042-013-1486-9"},{"volume-title":"Proceedings of the 20th Conference on Uncertainty inArtificial Intelligence (UAI \u203204)","author":"Rosen-Zvi M.","first-page":"487","key":"B3-2014-280892"},{"volume-title":"Proceedings of the 10th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD \u203204)","author":"Steyvers M.","first-page":"306","key":"B4-2014-280892"},{"doi-asserted-by":"publisher","key":"B5-2014-280892","DOI":"10.1145\/1658377.1658381"},{"volume-title":"Proceedings of the 19th International Joint Conference onArtificial Intelligence","author":"McCallum A.","first-page":"786","key":"B7-2014-280892"},{"doi-asserted-by":"publisher","key":"B8-2014-280892","DOI":"10.1613\/jair.2229"},{"doi-asserted-by":"publisher","key":"B9-2014-280892","DOI":"10.1145\/1281192.1281247"},{"doi-asserted-by":"publisher","key":"B10-2014-280892","DOI":"10.1145\/1835449.1835666"},{"doi-asserted-by":"publisher","key":"B11-2014-280892","DOI":"10.1145\/1871437.1871521"},{"doi-asserted-by":"publisher","key":"B12-2014-280892","DOI":"10.1007\/s10994-010-5212-9"},{"key":"B13-2014-280892","first-page":"1449","volume-title":"Advances in Neural Information Processing Systems 18","author":"Wang X.","year":"2006"},{"volume-title":"Proceedings of the 12th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD \u203206)","author":"Wang X.","first-page":"424","key":"B14-2014-280892"},{"volume-title":"Proceedings of the 4th International Conference on AdvancedScience and Technology","author":"Xu S.","first-page":"176","key":"B15-2014-280892"},{"volume-title":"Proceedings of the 23rd International Conference on Machine Learning (ICML \u203206)","author":"Blei D. 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